TY - JOUR
T1 - Characterization of residue from leached cathode ray tube funnel glass
T2 - reutilization as white carbon black
AU - Yuan, Wenyi
AU - Yao, Zhitong
AU - Zhang, Qiwu
AU - Li, Jinhui
N1 - Funding Information:
Acknowledgments This study was financially supported, in part, by the National Nature Science Foundation of China (21177069), Natural Science Foundation of Shanghai (14ZR1416700) and Knowledge Service Platform Program of Shanghai (ZF1224).
Publisher Copyright:
© 2014, Springer Japan.
PY - 2014/10
Y1 - 2014/10
N2 - Cathode ray tube (CRT) funnel glass remains an urgent environmental problem and is composed mainly of lead oxide and silicon oxide. In this research, the residue could be obtained from 2 h to 500 rpm activated CRT funnel glass after extracting lead via acid leaching under the conditions of HNO3 concentration 1.0 mol/L, leaching temperature 95 °C and leaching time 1 h. In order to reutilize the residue, its physico-chemical properties were characterized by scanning electron microscopy, Brunauer–Emmett–Teller, thermogravimetric analysis, X-ray diffraction and Fourier transform infrared spectroscopy. The results indicated that the residue was an amorphous superfine powder with approximately 93 wt% silica oxide and specific surface area of more than 170 m2/g. It can be reutilized as white carbon black.
AB - Cathode ray tube (CRT) funnel glass remains an urgent environmental problem and is composed mainly of lead oxide and silicon oxide. In this research, the residue could be obtained from 2 h to 500 rpm activated CRT funnel glass after extracting lead via acid leaching under the conditions of HNO3 concentration 1.0 mol/L, leaching temperature 95 °C and leaching time 1 h. In order to reutilize the residue, its physico-chemical properties were characterized by scanning electron microscopy, Brunauer–Emmett–Teller, thermogravimetric analysis, X-ray diffraction and Fourier transform infrared spectroscopy. The results indicated that the residue was an amorphous superfine powder with approximately 93 wt% silica oxide and specific surface area of more than 170 m2/g. It can be reutilized as white carbon black.
KW - Amorphous silica dioxide
KW - CRT funnel glass
KW - E-waste
KW - Reutilization
KW - White carbon black
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U2 - 10.1007/s10163-014-0291-5
DO - 10.1007/s10163-014-0291-5
M3 - Article
AN - SCOPUS:84939896392
SN - 1438-4957
VL - 16
SP - 629
EP - 634
JO - Journal of Material Cycles and Waste Management
JF - Journal of Material Cycles and Waste Management
IS - 4
ER -